*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html,body{
    width:100%;
    height: 100%;
    overflow: hidden;
}

body{
    display: flex;
    align-items: center;
    justify-content: center;
}
#game-panel{
    background-color: bisque;
    box-shadow: 4px 4px 3px #ccc;
}
